“A disciplined mind leads to happiness, and an undisciplined mind leads to suffering.”

“Whether our action is wholesome or unwholesome depends on whether that action or deed arises from a disciplined or undisciplined state of mind. It is felt that a disciplined mind leads to happiness and an undisciplined mind leads to suffering, and in fact it is said that bringing about discipline within one's mind is the essence of the Buddha's teaching.”

“There is nothing so disobedient as an undisciplined mind, and there is nothing so obedient as a disciplined mind.”

“The only competition you will ever have is the competition between your disciplined and undisciplined mind”

“The happiness which comes from long practice, which leads to the end of suffering, which at first is like poison, but at last like nectar - this kind of happiness arises from the serenity of one's own mind.”

“The undisciplined mind confuses misfortune with mistakes.”